Question:

I've installed Elasticsearch and can start the initial indexing process, but it never fully indexes my tickets. After waiting for hours, the "Objects in Elasticsearch" count for tickets is still much less that the "Objects in Deskpro" count.

I've checked the indexing log but there are no obvious errors.

How can I fix this?

Answer:

A possible solution is to increase the memory_limit variable in your php.ini file. 

Try increasing the default "128M" value to "256M".